| distance | reference number | name | latitude | longitude |
| 540.5 | 1702 | Lower Bryant Landing, Tensay River, Alabama | 30.9783 | -87.8733 |
| 549.8 | 1051 | Fredericksburg, Rappahannock River, Virginia | 38.3 | -77.45 |
| 549.9 | 3148 | Tulifiny River, I-95 bridge, Broad River, South Car | 32.6017 | -80.9033 |
| 550.5 | 1705 | Lower Hall Landing, Tensaw River, Alabama | 30.8167 | -87.9167 |
| 551.6 | 2028 | North Dawson Landing, Broad River, Coosawhatchie Ri | 32.5617 | -80.91 |
| 552.1 | 286 | Bluff Plantation, Combahee River, South Carolina | 32.6833 | -80.7383 |
| 552.3 | 1776 | Massaponax, Rappahannock River, Virginia | 38.25 | -77.4167 |
| 552.4 | 703 | Cuckolds Creek, Combahee River, South Carolina | 32.7133 | -80.695 |
| 554.5 | 88 | Aquia Creek, Virginia | 38.4167 | -77.35 |
| 555.2 | 2765 | Sheldon, Huspa Creek, Whale Branch, Coosaw River, S | 32.5833 | -80.7833 |
| 555.7 | 3167 | U.S. 17 Bridge, Combahee River, South Carolina | 32.6517 | -80.6833 |
| 556.0 | 2250 | Pilot Island, West Branch Boyds Creek, South Caroli | 32.505 | -80.8633 |
| 556.1 | 2599 | RR. Bridge, Hall Island, South Carolina | 32.5217 | -80.8383 |
| 556.2 | 99 | Ashepoo, Ashepoo River, South Carolina | 32.7433 | -80.5567 |
| 556.5 | 2473 | Purrysburg Landing, Savannah River, South Carolina | 32.3033 | -81.1217 |
| 556.7 | 1844 | Milton, Blackwater River, Pensacola Bay, Florida | 30.6167 | -87.0333 |
| 557.1 | 1663 | Lobeco, Whale Branch, Coosaw River, South Carolina | 32.5733 | -80.745 |
| 557.6 | 2475 | Quantico Creek, Virginia | 38.5167 | -77.2833 |
| 558.1 | 1859 | Mobile (Mobile State Docks), Alabama | 30.7083 | -88.0433 |
| 558.8 | 409 | Canaday Landing, south of, Edisto River, South Caro | 32.8133 | -80.4067 |
| 559.0 | 2606 | S.C.L. RR. bridge, Savannah River, Georgia | 32.2333 | -81.15 |
| 559.0 | 1660 | Liverpool Point, Maryland | 38.4667 | -77.2667 |
| 559.1 | 647 | Corning Landing, Whale Branch, Broad River, South C | 32.5 | -80.785 |
| 559.5 | 591 | Clifton Beach, Maryland | 38.4167 | -77.2667 |
| 559.5 | 179 | Bay Point, Blackwater River, Pensacola Bay, Florida | 30.5667 | -87 |